from machine import Pin
from utime import sleep

r = Pin(10, Pin.OUT)
g = Pin(9, Pin.OUT)
b = Pin(8, Pin.OUT)

led = (r, g, b)

def set_led(color: str = ""):
  if color == "r":
    r.on()
    g.off()
    b.off()
  elif color == "g":
    g.on()
    r.off()
    b.off()
  elif color == "b":
    b.on()
    r.off()
    g.off()
  else:
    for i in led:
      i.toggle()
    

while True:
  set_led("r")
  sleep(1.5)
  set_led("g")
  sleep(1.5)
  set_led("b")
  sleep(1.5)